LUX Control vs Voltage Drop Calc NEC
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
LUX Control
Control GM Lighting's smart products to customize your home or workspace. Create preset scenes, set schedules, and adjust brightness and color for the perfect ambiance. Compatible with voice assistants.
- Control GM Lighting Smart Products
- Create preset scenes
- Set schedules
- Adjust brightness and color
- Voice assistant compatibility (Alexa, Google Home)
- Control RGBW and V120 tape lights
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LUX Control™ App allows you to control all of your GM Lighting's Smart Products and Controls to fully experience the quality and beauty that GM Lighting offering brings to your home or workspace. With the LUX Control™ App, you can create preset scenes, set schedules for your GM Smart Products, switch lights ON/OFF and control the brightness and color of your lights to create the ideal mood or ambiance that you desire and to compliment your circadian rhythms all from the convenience of your phone or tablet. LUX Control™ App is compatible with Amazon Alexa and Google Home voice assistants. The app allows you to control GM Lighting’s RGBW tape lights, line voltage V120 tape as well as our low voltage LED Tape and a variety of other GM Lighting’s Smart Products.
Voltage Drop Calc NEC
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NEC voltage drop calculator for electricians, apprentices, and electrical engineers. Calculate voltage drop instantly using official NEC 2023 Chapter 9 data (Tables 8 and 9). Supports single-phase and three-phase circuits with copper or aluminum conductors. No internet required - works 100% offline on the job site. FEATURES: - Single-phase and three-phase calculations - 5 voltage presets: 120V, 208V, 240V, 277V, 480V - Copper and aluminum conductors: 14 AWG through 1000 kcmil - 3 conduit types: PVC, Aluminum, Steel — separate AC resistance and reactance per conduit - NEC Chapter 9 Table 9 effective impedance (Z) at power factor - Custom power factor support (default 0.85) - Voltage drop in volts and percentage - PASS/FAIL indicator based on NEC 3% recommendation - Recommends minimum wire size to meet 3% threshold - Shows voltage at load end NEC REFERENCES: - NEC 210.19(A) Info Note 4 - Branch circuit: max 3% - NEC 215.2(A) Info Note 2 - Feeder: max 3% - Combined feeder + branch: max 5% - Chapter 9 Table 8 - DC resistance at 75°C - Chapter 9 Table 9 - AC resistance, reactance, effective Z PRO FEATURES (one-time purchase): - No ads - Save calculation history - Export calculations as PDF reports - Dark theme support BUILT FOR THE JOB SITE: This app is designed by electricians, for electricians. Enter your circuit parameters, see voltage drop instantly, and get a recommended wire size - no complicated menus or unnecessary features. ACCURATE NEC DATA: All resistance and reactance values are sourced from NEC 2023 Edition, Chapter 9. Effective impedance is calculated using Z = R·cos(θ) + XL·sin(θ) per the NEC method. Always verify calculations against the official NEC code book before installation. PERFECT FOR: - Licensed electricians - Electrical apprentices - Electrical engineers and designers - Electrical contractors - DIY electrical projects - NEC code exam preparation OFFLINE & PRIVACY: - Works 100% offline - no internet needed - No account required - No data collection - Your calculations stay on your device Simplify your voltage drop calculations on the job site.
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Verdict
The clearest difference is price: LUX Control at Free against Voltage Drop Calc NEC's $0.99. LUX Control also leads on in-app purchases (none vs 1). Voltage Drop Calc NEC's advantage is update cadence (every 3 days vs every 6 months). On ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
LUX Control is free to download; Voltage Drop Calc NEC costs $0.99 up front. Voltage Drop Calc NEC sells 1 one-off in-app purchase. LUX Control asks for nothing beyond the download.
LUX Control ships an update every 6 months, Voltage Drop Calc NEC every 3 days. The most recent releases landed on October 20, 2026 and October 10, 2026 respectively.
| Parameter | LUX Control | Voltage Drop Calc NEC |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 4.9 (73 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 73 — better | — |
| Update frequency | Every 6 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 14.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 211 MB | 34 MB |
| Age rating | 17+ | 17+ |
| Developer | GMLighting | Rizvan Adzhoian |
In-app purchases
LUX Control
No in-app purchases
Voltage Drop Calc NEC
- Pro Unlock$2.99
Questions
Is LUX Control free?
Is Voltage Drop Calc NEC free?
Do LUX Control or Voltage Drop Calc NEC have ads?
Which is updated more often, LUX Control or Voltage Drop Calc NEC?
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